Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon showing our new design; and,

FIG. 2 is an enlarged front view of the icon thereof.

The dash-dash broken lines depict a display screen or portion thereof that forms no part of the claimed design.

The dot-dash broken lines in the figures illustrate a boundary of the claimed design and form no part thereof. 

CLAIM We claim the ornamental design for a display screen or portion thereof with icon, as shown and described. 